使用textwatcher格式化带货币或百分号的数字

Question

我已经搜索了如何使用textwatcher格式化带有货币或百分号的数字，但仍然无法使用。我尝试使用DecimalFormat方法，因为它看起来很简单，但我想因为textwatch不断运行，我的应用程序崩溃了。这是我所拥有的片段。我只需要textViewproceeds.setText（addProceeds（））格式化为货币或百分比。感谢。

editText1 = (EditText) findViewById(R.id.editText1);
editText2 = (EditText) findViewById(R.id.editText2);
editText3 = (EditText) findViewById(R.id.editText3);

editText1.addTextChangedListener(new TextWatcher() {

boolean editing = false;


        public void beforeTextChanged(CharSequence s, int start, int count,
                                      int after) {
            // TODO Auto-generated method stub

        }

        public void onTextChanged(CharSequence s, int start, int before,
                                  int count) {


        }

        public void afterTextChanged(Editable s) {
            // TODO Auto-generated method stub

        if(!editing) {
            editing = true;
            editText1.removeTextChangedListener(this);
                 editText3.setText(currency.format(Double.parseDouble(addProceeds())));
            editText1.addTextChangedListener(this);
            editing = false;
        }



        }
    });
    editText2.addTextChangedListener(new TextWatcher() {
       boolean editing = false;
        public void beforeTextChanged(CharSequence s, int start, int count,
                                      int after) {
            // TODO Auto-generated method stub

        }

        public void onTextChanged(CharSequence s, int start, int before,
                                  int count) {


        }

        public void afterTextChanged(Editable s) {
            // TODO Auto-generated method stub
            if(!editing) {
                editing = true;
                editText1.removeTextChangedListener(this);
                editText3.setText(currency.format(Double.parseDouble(addProceeds())));
                editText1.addTextChangedListener(this);
                editing = false;
            }

        }
    });
}


    private String addProceeds() {
    Double num1;
    Double num2;

    if (editText1.getText().toString() != "" && editText1.getText().length() > 0) {
        num1 = Double.parseDouble("0" + editText1.getText().toString());
    } else {
        num1 = Double.valueOf(0);
    }
    if (editText2.getText().toString() != "" && editText2.getText().length() > 0) {
        num2 = Double.parseDouble("0" + editText2.getText().toString());
    } else {
        num2 = Double.valueOf(0);
    }

    return Double.toString(num1 + num2);
}

到目前为止，以下格式作为单个editText字段的最终计算格式正常，但由于无限循环而输入数字时不起作用。

           //Put below somewhere at class level
           DecimalFormat currency = new DecimalFormat("$###,##0.00");

           boolean editing = false;
            public void afterTextChanged(Editable s) {
            // TODO Auto-generated method stub

        if(!editing) {
            editing = true;
            editText1.removeTextChangedListener(this);
            editText3.setText(currency.format(Double.parseDouble(addProceeds())));
            editText1.addTextChangedListener(this);
            editing = false;
        }